Method of making light-weight concrete aggregate |
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| 申请号 | US4078670 | 申请日 | 1970-05-27 | 公开(公告)号 | US3864443A | 公开(公告)日 | 1975-02-04 |
| 申请人 | HOPKINS ARTHUR; | 发明人 | HOPKINS ARTHUR; | ||||
| 摘要 | An aggregate for making high-strength, light-weight concrete, the aggregate being constituted by shaped glass, asbestos, cement, metal or plastic elements whose surfaces are fluted and otherwise treated to improve the adhesion of the aggregate to the concrete matrix and which can be made hollow to effect a significant decrease in weight. | ||||||
| 权利要求 | 1. The method of making aggregate for use in a concrete matrix, said method comprising the steps of: A. continuously extruding a tube of moldable material through a die, said material having structural characteristics suitable for an aggregate, said tube having a diameter appropriate to aggregate, B. sealing and sectioning the tube to form individual aggregate elements; and C. treating the surface of the individual elements, while still moldable, to improve their adhesion characteristics. 2. The method as set forth in claim 1, wherein said tube is formed of glass. 3. The method as set forth in claim 1, wherein said tube is formed of synthetic plastic material. 4. The method as set forth in claim 1, wherein said tube is formed of ceramic material. 5. The method as set forth in claim 1, wherein the surface of said tube is longitudinally fluted in the course of extrusion. 6. The method as set forth in claim 1, wherein the surface of said tube is sprayed with particles before said tube is sectioned, whereby the particles embed in the surface and become encrusted therein. 7. The method as set forth in claim 6, wherein said particles are of different size and are successively applied so that the coarse particles are applied, then the medium particles and finally the fine particles are applied. 8. The method as set forth in claim 7, wherein the particle-coated tube is sprayed with a protective film. 9. The method as set forth in claim 1, wherein the extruded tube is formed with closed cells to incorporate air pockets therein which improve the thermal properties of the aggregate. 10. The method as set forth in claim 1, wherein the tube is extruded with reinforcing wires embedded therein. |
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| 说明书全文 | |||||||
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